Fastening the rafter to the wall plate
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The process of installing a rafter to a wall plate. This connection is for layered roof construction systems. A reliable and durable connection capable of withstanding loads without deformation in strong winds and in seismic zones. Under the wall plate there is a reinforced concrete belt closed along the perimeter of the building. The connection of the wall plate to the reinforced belt is made of embedded studs f16m, the pitch of the studs is 600 mm. The wall plate is prefabricated from a 50x150 board. The dimensions of the wall plate are 150 mm wide and 200 mm high. Installed on the reinforced belt through 2 layers of waterproofing. Liquid bitumen mastic + roofing felt. During installation, it is necessary to maintain the verticality of the rafter plane, deviation from the vertical reduces the bearing capacity of the rafter. The following materials are used in this fastening: Reinforced galvanized fastening angle 90x90x40x2.5 mm (2 pcs) Reinforced galvanized fastening angle 100x100x90x2 mm (2 pcs) Self-tapping screws for wood 6x120 mm with a countersunk head, structural (14 pcs) Forged construction bracket f8 mm 220x70 mm (2 pcs) Self-tapping screws for wood 4x40 mm (32 pcs) Construction roofing felt 10x20 cm (1 pc) Galvanized bolt M10x70 mm DIN 933 (1 pc) Galvanized nuts M10 DIN 934 (1 pc) Galvanized body washers f10x30 mm DIN 9021 (2 pcs) Spring washers galvanized 12 mm DIN 127 (2 pcs)
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